A126457 - cp's OEIS frontend

A126457 Triangle, read by rows, where T(n,k) = C( C(n+2,3) - C(k+2,3) + 3, n-k) for n>=k>=0.

n	a(n)
0	1
1	4
2	1
3	21
4	6
5	1
6	286
7	66
8	9
9	1
10	8855
11	1540
12	171
13	13
14	1
15	501942
16	66045
17	5984
18	378
19	18
20	1
21	45057474
22	4582116
23	341055
24	18424
25	741
26	24
27	1
28	5843355957
29	470155077
30	29034396
31	1353275
32	47905
33	1326
34	31
35	1
36	1029873432159
37	66983637864
38	3470108187
39	140364532

[1, 4, 1, 21, 6, 1, 286, 66, 9, 1, 8855, 1540, 171, 13, 1, 501942, 66045, 5984, 378, 18, 1, 45057474, 4582116, 341055, 18424, 741, 24, 1, 5843355957, 470155077, 29034396, 1353275, 47905, 1326, 31, 1, 1029873432159, 66983637864, 3470108187, 140364532]

cp's OEIS Frontend

A126457 Triangle, read by rows, where T(n,k) = C( C(n+2,3) - C(k+2,3) + 3, n-k) for n>=k>=0.

Table of values

List of values